mirror of https://github.com/cmur2/miflorad.git
munin-miflora: refactor into two implementations using go-ble and gatt libraries, have common package
This commit is contained in:
parent
51bb5a93c5
commit
e75c04785a
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@ -1,2 +1,3 @@
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.envrc
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cmd/munin-miflora/munin-miflora
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miflorad
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cmd/munin-miflora-gatt/munin-miflora-gatt
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12
Makefile
12
Makefile
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@ -1,21 +1,29 @@
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.POSIX:
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MIFLORA_ADDR?=00:00:00:00:00:00
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.PHONY: all
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all: clean build test
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.PHONY: run
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run: clean build test
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sudo cmd/munin-miflora/munin-miflora xyz 00:00:00:00:00:00
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sudo cmd/munin-miflora/munin-miflora xyz $(MIFLORA_ADDR)
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.PHONY: clean
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clean:
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rm -f cmd/munin-miflora/munin-miflora
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rm -f cmd/munin-miflora/munin-miflora-gatt
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.PHONY: build
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build: cmd/munin-miflora/munin-miflora
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build: cmd/munin-miflora/munin-miflora cmd/munin-miflora/munin-miflora-gatt
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.PHONY: test
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test: build
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.PHONY: cmd/munin-miflora/munin-miflora
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cmd/munin-miflora/munin-miflora:
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cd cmd/munin-miflora && go build && cd ../..
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.PHONY: cmd/munin-miflora/munin-miflora-gatt
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cmd/munin-miflora/munin-miflora-gatt:
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cd cmd/munin-miflora-gatt && go build && cd ../..
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@ -0,0 +1,181 @@
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package main
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import (
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"flag"
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"fmt"
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"os"
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"regexp"
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"strings"
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"time"
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"miflorad/common"
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impl "miflorad/common/gatt"
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"github.com/currantlabs/gatt"
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"github.com/currantlabs/gatt/examples/option"
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)
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const (
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discoveryTimeout = 4 * time.Second
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connectionTimeout = 4 * time.Second
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)
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type DiscoveryResult struct {
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p gatt.Peripheral
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a *gatt.Advertisement
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rssi int
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}
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var discoveryDone = make(chan DiscoveryResult)
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var connectionDone = make(chan struct{})
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func onStateChanged(device gatt.Device, state gatt.State) {
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fmt.Fprintln(os.Stderr, "State:", state)
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switch state {
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case gatt.StatePoweredOn:
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fmt.Fprintln(os.Stderr, "Scanning...")
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device.Scan([]gatt.UUID{}, false)
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return
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default:
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device.StopScanning()
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}
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}
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func onPeriphDiscovered(p gatt.Peripheral, a *gatt.Advertisement, rssi int) {
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id := strings.ToUpper(flag.Args()[1])
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if strings.ToUpper(p.ID()) != id {
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return
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}
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// Stop scanning once we've got the peripheral we're looking for.
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p.Device().StopScanning()
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discoveryDone <- DiscoveryResult{p, a, rssi}
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}
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func onPeriphConnected(p gatt.Peripheral, err error) {
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fmt.Fprintln(os.Stderr, "Connected")
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// Note: can hang due when device has terminated the connection on it's own already
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// defer p.Device().CancelConnection(p)
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if err := p.SetMTU(500); err != nil {
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fmt.Fprintf(os.Stderr, "Failed to set MTU, err: %s\n", err)
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}
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// Discover services and characteristics
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{
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_, err := p.DiscoverServices([]gatt.UUID{gatt.MustParseUUID(common.MifloraServiceUUID)})
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to discover services, err: %s\n", err)
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return
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}
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}
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for _, service := range p.Services() {
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_, err := p.DiscoverCharacteristics(nil, service)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to discover characteristics, err: %s\n", err)
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return
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}
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}
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prefix := flag.Args()[0]
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regexNonAlphaNumeric, err4 := regexp.Compile("[^a-z0-9]+")
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if err4 != nil {
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fmt.Fprintf(os.Stderr, "Failed to compile regex, err: %s\n", err4)
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}
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id := regexNonAlphaNumeric.ReplaceAllString(strings.ToLower(flag.Args()[1]), "")
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metaData, err := impl.MifloraRequestVersionBattery(p)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to request version battery, err: %s\n", err)
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return
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}
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fmt.Fprintf(os.Stderr, "Firmware version: %s\n", metaData.FirmwareVersion)
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.battery_level %d %d\n", prefix, id, metaData.BatteryLevel, time.Now().Unix())
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.firmware_version %d %d\n", prefix, id, metaData.NumericFirmwareVersion(), time.Now().Unix())
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// for the newer models a magic number must be written before we can read the current data
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if metaData.FirmwareVersion >= "2.6.6" {
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err2 := impl.MifloraRequestModeChange(p)
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if err2 != nil {
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fmt.Fprintf(os.Stderr, "Failed to request mode change, err: %s\n", err2)
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return
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}
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}
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sensorData, err3 := impl.MifloraRequstSensorData(p)
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if err3 != nil {
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fmt.Fprintf(os.Stderr, "Failed to request sensor data, err: %s\n", err3)
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return
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}
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.temperature %.1f %d\n", prefix, id, sensorData.Temperature, time.Now().Unix())
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.brightness %d %d\n", prefix, id, sensorData.Brightness, time.Now().Unix())
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.moisture %d %d\n", prefix, id, sensorData.Moisture, time.Now().Unix())
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.conductivity %d %d\n", prefix, id, sensorData.Conductivity, time.Now().Unix())
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// TODO: report that we are done without closing connection, since it could hang
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close(connectionDone)
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}
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func onPeriphDisconnected(p gatt.Peripheral, err error) {
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fmt.Fprintln(os.Stderr, "Disconnected")
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close(connectionDone)
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}
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func main() {
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flag.Parse()
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if len(flag.Args()) != 2 {
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fmt.Fprintf(os.Stderr, "Usage: %s [options] prefix peripheral-id\n", os.Args[0])
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os.Exit(1)
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}
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device, err := gatt.NewDevice(option.DefaultClientOptions...)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to open device, err: %s\n", err)
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os.Exit(1)
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}
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// Register discovery handler
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device.Handle(gatt.PeripheralDiscovered(onPeriphDiscovered))
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device.Init(onStateChanged)
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var discoveryResult DiscoveryResult
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select {
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case discoveryResult = <-discoveryDone:
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fmt.Fprintln(os.Stderr, "Discovery done")
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case <-time.After(discoveryTimeout):
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fmt.Fprintln(os.Stderr, "Discovery timed out")
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device.StopScanning()
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device.Stop()
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os.Exit(1)
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}
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fmt.Fprintf(os.Stderr, "Discovered peripheral ID:%s, NAME:(%s), RSSI:%d\n", discoveryResult.p.ID(), discoveryResult.p.Name(), discoveryResult.rssi)
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// Register connection handlers
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device.Handle(
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gatt.PeripheralConnected(onPeriphConnected),
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// gatt.PeripheralDisconnected(onPeriphDisconnected),
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)
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device.Connect(discoveryResult.p)
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select {
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case <-connectionDone:
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fmt.Fprintln(os.Stderr, "Connection done")
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case <-time.After(connectionTimeout):
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fmt.Fprintln(os.Stderr, "Connection timed out")
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// TODO: can hang due when device has terminated the connection on it's own already
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// device.CancelConnection(discoveryResult.p)
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os.Exit(1)
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}
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// Note: calls CancelConnection() and thus suffers the same problem, kernel will cleanup after our process finishes
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// device.Stop()
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}
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@ -1,6 +1,7 @@
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package main
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import (
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"context"
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"flag"
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"fmt"
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"os"
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@ -8,74 +9,16 @@ import (
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"strings"
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"time"
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"miflorad/common"
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impl "miflorad/common/ble"
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"github.com/currantlabs/gatt"
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"github.com/currantlabs/gatt/examples/option"
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"github.com/go-ble/ble"
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"github.com/go-ble/ble/examples/lib/dev"
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)
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const discoveryTimeout = 4 * time.Second
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const connectionTimeout = 4 * time.Second
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type DiscoveryResult struct {
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p gatt.Peripheral
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a *gatt.Advertisement
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rssi int
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}
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var discoveryDone = make(chan DiscoveryResult)
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var connectionDone = make(chan struct{})
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func onStateChanged(device gatt.Device, state gatt.State) {
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fmt.Fprintln(os.Stderr, "State:", state)
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switch state {
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case gatt.StatePoweredOn:
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fmt.Fprintln(os.Stderr, "Scanning...")
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device.Scan([]gatt.UUID{}, false)
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return
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default:
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device.StopScanning()
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}
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}
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func onPeriphDiscovered(p gatt.Peripheral, a *gatt.Advertisement, rssi int) {
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id := strings.ToUpper(flag.Args()[1])
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if strings.ToUpper(p.ID()) != id {
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return
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}
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// Stop scanning once we've got the peripheral we're looking for.
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p.Device().StopScanning()
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discoveryDone <- DiscoveryResult{p, a, rssi}
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}
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func onPeriphConnected(p gatt.Peripheral, err error) {
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fmt.Fprintln(os.Stderr, "Connected")
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// Note: can hang due when device has terminated the connection on it's own already
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// defer p.Device().CancelConnection(p)
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if err := p.SetMTU(500); err != nil {
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fmt.Fprintf(os.Stderr, "Failed to set MTU, err: %s\n", err)
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}
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// Discover services and characteristics
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{
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_, err := p.DiscoverServices([]gatt.UUID{common.MifloraServiceUUID})
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to discover services, err: %s\n", err)
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return
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}
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}
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for _, service := range p.Services() {
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_, err := p.DiscoverCharacteristics(nil, service)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to discover characteristics, err: %s\n", err)
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return
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}
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}
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func readData(client ble.Client, profile *ble.Profile) {
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prefix := flag.Args()[0]
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regexNonAlphaNumeric, err4 := regexp.Compile("[^a-z0-9]+")
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@ -84,7 +27,7 @@ func onPeriphConnected(p gatt.Peripheral, err error) {
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}
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id := regexNonAlphaNumeric.ReplaceAllString(strings.ToLower(flag.Args()[1]), "")
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metaData, err := common.MifloraRequestVersionBattery(p)
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metaData, err := impl.RequestVersionBattery(client, profile)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to request version battery, err: %s\n", err)
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return
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@ -93,18 +36,18 @@ func onPeriphConnected(p gatt.Peripheral, err error) {
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fmt.Fprintf(os.Stderr, "Firmware version: %s\n", metaData.FirmwareVersion)
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.battery_level %d %d\n", prefix, id, metaData.BatteryLevel, time.Now().Unix())
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.firmware_version %s %d\n", prefix, id, metaData.NumericFirmwareVersion(), time.Now().Unix())
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.firmware_version %d %d\n", prefix, id, metaData.NumericFirmwareVersion(), time.Now().Unix())
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// for the newer models a magic number must be written before we can read the current data
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if metaData.FirmwareVersion >= "2.6.6" {
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err2 := common.MifloraRequestModeChange(p)
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err2 := impl.RequestModeChange(client, profile)
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if err2 != nil {
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fmt.Fprintf(os.Stderr, "Failed to request mode change, err: %s\n", err2)
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return
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}
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}
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sensorData, err3 := common.MifloraRequstSensorData(p)
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sensorData, err3 := impl.RequestSensorData(client, profile)
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if err3 != nil {
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fmt.Fprintf(os.Stderr, "Failed to request sensor data, err: %s\n", err3)
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return
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@ -115,11 +58,6 @@ func onPeriphConnected(p gatt.Peripheral, err error) {
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fmt.Fprintf(os.Stdout, "%s.miflora.%s.conductivity %d %d\n", prefix, id, sensorData.Conductivity, time.Now().Unix())
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}
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func onPeriphDisconnected(p gatt.Peripheral, err error) {
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fmt.Fprintln(os.Stderr, "Disconnected")
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close(connectionDone)
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}
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func main() {
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flag.Parse()
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if len(flag.Args()) != 2 {
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@ -127,49 +65,52 @@ func main() {
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os.Exit(1)
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}
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device, err := gatt.NewDevice(option.DefaultClientOptions...)
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{
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device, err := dev.NewDevice("default")
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to open device, err: %s\n", err)
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os.Exit(1)
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}
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ble.SetDefaultDevice(device)
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}
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filter := func(adv ble.Advertisement) bool {
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return strings.ToUpper(adv.Addr().String()) == strings.ToUpper(flag.Args()[1])
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}
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fmt.Fprintln(os.Stderr, "Scanning...")
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ctx := ble.WithSigHandler(context.WithTimeout(context.Background(), discoveryTimeout))
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client, err := ble.Connect(ctx, filter)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to open device, err: %s\n", err)
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fmt.Fprintf(os.Stderr, "Failed to connect to %s, err: %s\n", flag.Args()[1], err)
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os.Exit(1)
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}
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// Register discovery handler
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device.Handle(gatt.PeripheralDiscovered(onPeriphDiscovered))
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// Source: https://github.com/go-ble/ble/blob/master/examples/basic/explorer/main.go#L53
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// Make sure we had the chance to print out the message.
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done := make(chan struct{})
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// Normally, the connection is disconnected by us after our exploration.
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// However, it can be asynchronously disconnected by the remote peripheral.
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// So we wait(detect) the disconnection in the go routine.
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go func() {
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<-client.Disconnected()
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fmt.Fprintln(os.Stderr, "Disconnected")
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close(done)
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}()
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device.Init(onStateChanged)
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fmt.Fprintln(os.Stderr, "Connected")
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var discoveryResult DiscoveryResult
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select {
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case discoveryResult = <-discoveryDone:
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fmt.Fprintln(os.Stderr, "Discovery done")
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case <-time.After(discoveryTimeout):
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fmt.Fprintln(os.Stderr, "Discovery timed out")
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device.StopScanning()
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device.Stop()
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profile, err := client.DiscoverProfile(true)
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if err != nil {
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fmt.Fprintf(os.Stderr, "Failed to discover profile, err: %s\n", err)
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os.Exit(1)
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}
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fmt.Fprintf(os.Stderr, "Discovered peripheral ID:%s, NAME:(%s), RSSI:%d\n", discoveryResult.p.ID(), discoveryResult.p.Name(), discoveryResult.rssi)
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readData(client, profile)
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// Register connection handlers
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device.Handle(
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gatt.PeripheralConnected(onPeriphConnected),
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gatt.PeripheralDisconnected(onPeriphDisconnected),
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)
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fmt.Fprintln(os.Stderr, "Connection done")
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device.Connect(discoveryResult.p)
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client.CancelConnection()
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select {
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case <-connectionDone:
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fmt.Fprintln(os.Stderr, "Connection done")
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case <-time.After(connectionTimeout):
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fmt.Fprintln(os.Stderr, "Connection timed out")
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// TODO: can hang due when device has terminated the connection on it's own already
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// device.CancelConnection(discoveryResult.p)
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os.Exit(1)
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}
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// Note: calls CancelConnetcion() and thus suffers the same problem, kernel will cleanup after our process finishes
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// device.Stop()
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<-done
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}
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|
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@ -0,0 +1,84 @@
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package ble
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import (
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"errors"
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"miflorad/common"
|
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|
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"github.com/go-ble/ble"
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)
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func FindServiceByUUID(services []*ble.Service, u ble.UUID) *ble.Service {
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||||
for _, service := range services {
|
||||
if service.UUID.Equal(u) {
|
||||
return service
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func FindCharacteristicByUUID(characteristics []*ble.Characteristic, u ble.UUID) *ble.Characteristic {
|
||||
for _, characteristic := range characteristics {
|
||||
if characteristic.UUID.Equal(u) {
|
||||
return characteristic
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func RequestVersionBattery(client ble.Client, profile *ble.Profile) (common.VersionBatteryResponse, error) {
|
||||
mifloraService := FindServiceByUUID(profile.Services, ble.MustParse(common.MifloraServiceUUID))
|
||||
if mifloraService == nil {
|
||||
return common.VersionBatteryResponse{}, errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraVersionBatteryChar := FindCharacteristicByUUID(mifloraService.Characteristics, ble.MustParse(common.MifloraCharVersionBatteryUUID))
|
||||
if mifloraVersionBatteryChar == nil {
|
||||
return common.VersionBatteryResponse{}, errors.New("Failed to get the version battery characteristic")
|
||||
}
|
||||
|
||||
bytes, err := client.ReadCharacteristic(mifloraVersionBatteryChar)
|
||||
if err != nil {
|
||||
return common.VersionBatteryResponse{}, err
|
||||
}
|
||||
|
||||
return common.ParseVersionBattery(bytes), nil
|
||||
}
|
||||
|
||||
func RequestModeChange(client ble.Client, profile *ble.Profile) error {
|
||||
mifloraService := FindServiceByUUID(profile.Services, ble.MustParse(common.MifloraServiceUUID))
|
||||
if mifloraService == nil {
|
||||
return errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraModeChangeChar := FindCharacteristicByUUID(mifloraService.Characteristics, ble.MustParse(common.MifloraCharModeChangeUUID))
|
||||
if mifloraModeChangeChar == nil {
|
||||
return errors.New("Failed to discover the mode change characteristic")
|
||||
}
|
||||
|
||||
err := client.WriteCharacteristic(mifloraModeChangeChar, common.MifloraGetModeChangeData(), false)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func RequestSensorData(client ble.Client, profile *ble.Profile) (common.SensorDataResponse, error) {
|
||||
mifloraService := FindServiceByUUID(profile.Services, ble.MustParse(common.MifloraServiceUUID))
|
||||
if mifloraService == nil {
|
||||
return common.SensorDataResponse{}, errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraSensorDataChar := FindCharacteristicByUUID(mifloraService.Characteristics, ble.MustParse(common.MifloraCharReadSensorDataUUID))
|
||||
if mifloraSensorDataChar == nil {
|
||||
return common.SensorDataResponse{}, errors.New("Failed to discover the sensor data characteristic")
|
||||
}
|
||||
|
||||
bytes, err := client.ReadCharacteristic(mifloraSensorDataChar)
|
||||
if err != nil {
|
||||
return common.SensorDataResponse{}, err
|
||||
}
|
||||
|
||||
return common.ParseSensorData(bytes), nil
|
||||
}
|
||||
125
common/common.go
125
common/common.go
|
|
@ -1,125 +0,0 @@
|
|||
package common
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
"errors"
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
|
||||
"github.com/currantlabs/gatt"
|
||||
)
|
||||
|
||||
type VersionBatteryResponse struct {
|
||||
FirmwareVersion string // as "x.y.z"
|
||||
BatteryLevel uint8 // in percent 0-100
|
||||
}
|
||||
|
||||
type SensorDataResponse struct {
|
||||
Temperature float64 // in degree C
|
||||
Brightness uint32 // in lux
|
||||
Moisture uint8 // in percent 0-100
|
||||
Conductivity uint16 // in µS/cm
|
||||
}
|
||||
|
||||
func MifloraGetModeChangeData() []byte {
|
||||
return []byte{0xa0, 0x1f}
|
||||
}
|
||||
|
||||
var MifloraServiceUUID = gatt.MustParseUUID("00001204-0000-1000-8000-00805f9b34fb")
|
||||
var MifloraCharModeChangeUUID = gatt.MustParseUUID("00001a00-0000-1000-8000-00805f9b34fb")
|
||||
var MifloraCharReadSensorDataUUID = gatt.MustParseUUID("00001a01-0000-1000-8000-00805f9b34fb")
|
||||
var MifloraCharVersionBatteryUUID = gatt.MustParseUUID("00001a02-0000-1000-8000-00805f9b34fb")
|
||||
|
||||
func FindServiceByUUID(services []*gatt.Service, u gatt.UUID) *gatt.Service {
|
||||
for _, service := range services {
|
||||
if service.UUID().Equal(u) {
|
||||
return service
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func FindCharacteristicByUUID(characteristics []*gatt.Characteristic, u gatt.UUID) *gatt.Characteristic {
|
||||
for _, characteristic := range characteristics {
|
||||
if characteristic.UUID().Equal(u) {
|
||||
return characteristic
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func MifloraRequestVersionBattery(p gatt.Peripheral) (VersionBatteryResponse, error) {
|
||||
mifloraService := FindServiceByUUID(p.Services(), MifloraServiceUUID)
|
||||
if mifloraService == nil {
|
||||
return VersionBatteryResponse{}, errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraVersionBatteryChar := FindCharacteristicByUUID(mifloraService.Characteristics(), MifloraCharVersionBatteryUUID)
|
||||
if mifloraVersionBatteryChar == nil {
|
||||
return VersionBatteryResponse{}, errors.New("Failed to get the version battery characteristic")
|
||||
}
|
||||
|
||||
bytes, err := p.ReadCharacteristic(mifloraVersionBatteryChar)
|
||||
if err != nil {
|
||||
return VersionBatteryResponse{}, err
|
||||
}
|
||||
|
||||
return VersionBatteryResponse{string(bytes[2:]), uint8(bytes[0])}, nil
|
||||
}
|
||||
|
||||
func MifloraRequestModeChange(p gatt.Peripheral) error {
|
||||
mifloraService := FindServiceByUUID(p.Services(), MifloraServiceUUID)
|
||||
if mifloraService == nil {
|
||||
return errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraModeChangeChar := FindCharacteristicByUUID(mifloraService.Characteristics(), MifloraCharModeChangeUUID)
|
||||
if mifloraModeChangeChar == nil {
|
||||
return errors.New("Failed to discover the mode change characteristic")
|
||||
}
|
||||
|
||||
err := p.WriteCharacteristic(mifloraModeChangeChar, MifloraGetModeChangeData(), false)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func MifloraRequstSensorData(p gatt.Peripheral) (SensorDataResponse, error) {
|
||||
mifloraService := FindServiceByUUID(p.Services(), MifloraServiceUUID)
|
||||
if mifloraService == nil {
|
||||
return SensorDataResponse{}, errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraSensorDataChar := FindCharacteristicByUUID(mifloraService.Characteristics(), MifloraCharReadSensorDataUUID)
|
||||
if mifloraSensorDataChar == nil {
|
||||
return SensorDataResponse{}, errors.New("Failed to discover the sensor data characteristic")
|
||||
}
|
||||
|
||||
bytes, err := p.ReadCharacteristic(mifloraSensorDataChar)
|
||||
if err != nil {
|
||||
return SensorDataResponse{}, err
|
||||
}
|
||||
|
||||
return SensorDataResponse{
|
||||
Temperature: float64(binary.LittleEndian.Uint16(bytes[0:2])) / 10.0,
|
||||
Brightness: binary.LittleEndian.Uint32(bytes[3:7]),
|
||||
Moisture: uint8(bytes[7]),
|
||||
Conductivity: binary.LittleEndian.Uint16(bytes[8:10]),
|
||||
}, nil
|
||||
}
|
||||
|
||||
func (res VersionBatteryResponse) NumericFirmwareVersion() int {
|
||||
// turns "2.3.4" into 20304
|
||||
version := 0
|
||||
parts := strings.Split(res.FirmwareVersion, ".")
|
||||
for i, part := range parts {
|
||||
partNumber, err := strconv.Atoi(part)
|
||||
if err != nil {
|
||||
version += int(math.Pow10((len(parts)-(i+1))*2)) * partNumber
|
||||
}
|
||||
}
|
||||
return version
|
||||
}
|
||||
|
|
@ -0,0 +1,33 @@
|
|||
package common
|
||||
|
||||
import (
|
||||
"math"
|
||||
"strconv"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type VersionBatteryResponse struct {
|
||||
FirmwareVersion string // as "x.y.z"
|
||||
BatteryLevel uint8 // in percent 0-100
|
||||
}
|
||||
|
||||
type SensorDataResponse struct {
|
||||
Temperature float64 // in degree C
|
||||
Brightness uint32 // in lux
|
||||
Moisture uint8 // in percent 0-100
|
||||
Conductivity uint16 // in µS/cm
|
||||
}
|
||||
|
||||
func (res VersionBatteryResponse) NumericFirmwareVersion() int {
|
||||
// turns "2.3.4" into 20304
|
||||
version := 0
|
||||
parts := strings.Split(res.FirmwareVersion, ".")
|
||||
for i, part := range parts {
|
||||
partNumber, err := strconv.Atoi(part)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
version += int(math.Pow10((len(parts)-(i+1))*2)) * partNumber
|
||||
}
|
||||
return version
|
||||
}
|
||||
|
|
@ -0,0 +1,86 @@
|
|||
package gatt
|
||||
|
||||
import (
|
||||
"errors"
|
||||
|
||||
"miflorad/common"
|
||||
|
||||
"github.com/currantlabs/gatt"
|
||||
)
|
||||
|
||||
var MifloraCharVersionBatteryUUID = gatt.MustParseUUID("00001a02-0000-1000-8000-00805f9b34fb")
|
||||
|
||||
func FindServiceByUUID(services []*gatt.Service, u gatt.UUID) *gatt.Service {
|
||||
for _, service := range services {
|
||||
if service.UUID().Equal(u) {
|
||||
return service
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func FindCharacteristicByUUID(characteristics []*gatt.Characteristic, u gatt.UUID) *gatt.Characteristic {
|
||||
for _, characteristic := range characteristics {
|
||||
if characteristic.UUID().Equal(u) {
|
||||
return characteristic
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func MifloraRequestVersionBattery(p gatt.Peripheral) (common.VersionBatteryResponse, error) {
|
||||
mifloraService := FindServiceByUUID(p.Services(), gatt.MustParseUUID(common.MifloraServiceUUID))
|
||||
if mifloraService == nil {
|
||||
return common.VersionBatteryResponse{}, errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraVersionBatteryChar := FindCharacteristicByUUID(mifloraService.Characteristics(), MifloraCharVersionBatteryUUID)
|
||||
if mifloraVersionBatteryChar == nil {
|
||||
return common.VersionBatteryResponse{}, errors.New("Failed to get the version battery characteristic")
|
||||
}
|
||||
|
||||
bytes, err := p.ReadCharacteristic(mifloraVersionBatteryChar)
|
||||
if err != nil {
|
||||
return common.VersionBatteryResponse{}, err
|
||||
}
|
||||
|
||||
return common.ParseVersionBattery(bytes), nil
|
||||
}
|
||||
|
||||
func MifloraRequestModeChange(p gatt.Peripheral) error {
|
||||
mifloraService := FindServiceByUUID(p.Services(), gatt.MustParseUUID(common.MifloraServiceUUID))
|
||||
if mifloraService == nil {
|
||||
return errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraModeChangeChar := FindCharacteristicByUUID(mifloraService.Characteristics(), gatt.MustParseUUID(common.MifloraCharModeChangeUUID))
|
||||
if mifloraModeChangeChar == nil {
|
||||
return errors.New("Failed to discover the mode change characteristic")
|
||||
}
|
||||
|
||||
err := p.WriteCharacteristic(mifloraModeChangeChar, common.MifloraGetModeChangeData(), false)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func MifloraRequstSensorData(p gatt.Peripheral) (common.SensorDataResponse, error) {
|
||||
mifloraService := FindServiceByUUID(p.Services(), gatt.MustParseUUID(common.MifloraServiceUUID))
|
||||
if mifloraService == nil {
|
||||
return common.SensorDataResponse{}, errors.New("Failed to get the miflora service")
|
||||
}
|
||||
|
||||
mifloraSensorDataChar := FindCharacteristicByUUID(mifloraService.Characteristics(), gatt.MustParseUUID(common.MifloraCharReadSensorDataUUID))
|
||||
if mifloraSensorDataChar == nil {
|
||||
return common.SensorDataResponse{}, errors.New("Failed to discover the sensor data characteristic")
|
||||
}
|
||||
|
||||
bytes, err := p.ReadCharacteristic(mifloraSensorDataChar)
|
||||
if err != nil {
|
||||
return common.SensorDataResponse{}, err
|
||||
}
|
||||
|
||||
return common.ParseSensorData(bytes), nil
|
||||
}
|
||||
|
|
@ -0,0 +1,32 @@
|
|||
package common
|
||||
|
||||
import (
|
||||
"encoding/binary"
|
||||
)
|
||||
|
||||
const (
|
||||
MifloraServiceUUID = "00001204-0000-1000-8000-00805f9b34fb"
|
||||
MifloraCharModeChangeUUID = "00001a00-0000-1000-8000-00805f9b34fb"
|
||||
MifloraCharReadSensorDataUUID = "00001a01-0000-1000-8000-00805f9b34fb"
|
||||
MifloraCharVersionBatteryUUID = "00001a02-0000-1000-8000-00805f9b34fb"
|
||||
)
|
||||
|
||||
func MifloraGetModeChangeData() []byte {
|
||||
return []byte{0xa0, 0x1f}
|
||||
}
|
||||
|
||||
func ParseVersionBattery(bytes []byte) VersionBatteryResponse {
|
||||
return VersionBatteryResponse{
|
||||
string(bytes[2:]),
|
||||
uint8(bytes[0]),
|
||||
}
|
||||
}
|
||||
|
||||
func ParseSensorData(bytes []byte) SensorDataResponse {
|
||||
return SensorDataResponse{
|
||||
Temperature: float64(binary.LittleEndian.Uint16(bytes[0:2])) / 10.0,
|
||||
Brightness: binary.LittleEndian.Uint32(bytes[3:7]),
|
||||
Moisture: uint8(bytes[7]),
|
||||
Conductivity: binary.LittleEndian.Uint16(bytes[8:10]),
|
||||
}
|
||||
}
|
||||
1
go.mod
1
go.mod
|
|
@ -4,6 +4,7 @@ require (
|
|||
github.com/coreos/go-systemd v0.0.0-20181031085051-9002847aa142 // indirect
|
||||
github.com/currantlabs/gatt v0.0.0-20161006170101-f949eac78f4e
|
||||
github.com/fatih/structs v1.1.0 // indirect
|
||||
github.com/go-ble/ble v0.0.0-20181002102605-e78417b510a3
|
||||
github.com/godbus/dbus v0.0.0-20181031085051-66d97ae // indirect
|
||||
github.com/mattn/go-colorable v0.0.9 // indirect
|
||||
github.com/mattn/go-isatty v0.0.4 // indirect
|
||||
|
|
|
|||
2
go.sum
2
go.sum
|
|
@ -6,6 +6,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
|
|||
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
|
||||
github.com/fatih/structs v1.1.0 h1:Q7juDM0QtcnhCpeyLGQKyg4TOIghuNXrkL32pHAUMxo=
|
||||
github.com/fatih/structs v1.1.0/go.mod h1:9NiDSp5zOcgEDl+j00MP/WkGVPOlPRLejGD8Ga6PJ7M=
|
||||
github.com/go-ble/ble v0.0.0-20181002102605-e78417b510a3 h1:rsLGztXl2QJvj4x/PAWzC1Zx6tnTDKlosaXAZfaXM8M=
|
||||
github.com/go-ble/ble v0.0.0-20181002102605-e78417b510a3/go.mod h1:UMPB54/KFpdTdfH7Yovhk3J6kzgzE88e3QZi8cbayis=
|
||||
github.com/godbus/dbus v0.0.0-20181031085051-66d97ae h1:NTs1uIj/Ru/QlpKwd9C9dnv/5zblvCXH7Dbn2oi3p98=
|
||||
github.com/godbus/dbus v0.0.0-20181031085051-66d97ae/go.mod h1:/YcGZj5zSblfDWMMoOzV4fas9FZnQYTkDnsGvmh2Grw=
|
||||
github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
|
||||
|
|
|
|||
Loading…
Reference in New Issue